From nobody Thu Nov 18 18:54:12 2021 X-Original-To: freebsd-x11@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id D8D3D1851185 for ; Thu, 18 Nov 2021 18:54:30 +0000 (UTC) (envelope-from evgeniy@khramtsov.org) Received: from mxa.khramtsov.org (mxa.khramtsov.org [IPv6:2a0a:e5c0:2:10f::f]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4Hw89K4WMFz3j8R for ; Thu, 18 Nov 2021 18:54:26 +0000 (UTC) (envelope-from evgeniy@khramtsov.org) Received: from mxa.khramtsov.org (mxa.khramtsov.org [IPv6:2a0a:e5c0:2:10f::f]) by mxa.khramtsov.org (Postfix) with ESMTP id C00B21260CE for ; Thu, 18 Nov 2021 18:53:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=khramtsov.org; s=rsa; t=1637261595; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=cJi6WG4x9rCSOWTyBbxIlDjsE3i9V3xTFyPGxusy79I=; b=EIZGPLplu5RIDJcJJ/v9q9CUTISzJ7znzIt2oPqt73EtDMhNr0uESbtVtRPuUt5JZfDWEG j6BVvhzRXBev/dpHUFIe8NhjurF2Rfjtx3fgOVXABsSdLd/6awihmxsllibMc0OzoFy4I5 zGZy1++O2mqGbFRRA24cZQf6LHoGHdi2MhCEEC0LaD/qz7QbeQLvHB0KrCj6dACvcdQF8R mvFODA9EPKtWs/rFd6AtkImnr3HnnXeNhWvomHvLEHwFsgNvLrqIqDyU2PM/avZIzmJofk 5y6YvhTWNTSLCXMBb5xW3HbZ821s4Ew8mqY19QWwL3SCtPovt4cUkTHOJqyKaQ== Date: Thu, 18 Nov 2021 21:54:12 +0300 To: FreeBSD-X11@FreeBSD.org Subject: graphics/mesa-devel: LTO=on and ports LLVM note Message-ID: <20211118185412.ijqokqwkkf7t6iqz@vax.khramtsov.org> List-Id: X11 List-Archive: https://lists.freebsd.org/archives/freebsd-x11 List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-x11@freebsd.org X-BeenThere: freebsd-x11@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: 4Hw89K4WMFz3j8R X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=khramtsov.org header.s=rsa header.b=EIZGPLpl; dmarc=pass (policy=reject) header.from=khramtsov.org; spf=pass (mx1.freebsd.org: domain of evgeniy@khramtsov.org designates 2a0a:e5c0:2:10f::f as permitted sender) smtp.mailfrom=evgeniy@khramtsov.org X-Spamd-Result: default: False [-3.68 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[khramtsov.org:s=rsa]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2a0a:e5c0:2:10f::f]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-x11@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_RHS_MATCH_FROMTLD(0.00)[]; DKIM_TRACE(0.00)[khramtsov.org:+]; DMARC_POLICY_ALLOW(-0.50)[khramtsov.org,reject]; NEURAL_HAM_SHORT(-0.88)[-0.879]; RCVD_COUNT_ONE(0.00)[1]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:207996, ipnet:2a0a:e5c0:2::/48, country:CH]; ONCE_RECEIVED(0.10)[] Reply-To: evgeniy@khramtsov.org From: Evgeniy Khramtsov via FreeBSD-X11 X-Original-From: Evgeniy Khramtsov X-ThisMailContainsUnwantedMimeParts: N I remember some posts in FreeBSDDesktop Gitter about mesa-devel failing to link with LTO=on when using ports LLVM as system compiler and toolchain. Recently, I started to spend more time on using ports LLVM as system toolchain, e.g. try to have this viable outside of my $(hostname), and I realized that ports don't source variables from sys.mk (e.g. AR, NM, RANLIB, STRIPBIN, ...) sometimes. I realized this after removing elftoolchain. Once I fixed (just env passing tbh) fallout from removing elftoolchain up to graphics/mesa-devel, I tried LTO=on build, and then it passed. So, the issue is likely due to mixing base elftoolchain utils with ports LLVM. Now I have ~40 patches locally to honor variables in sys.mk, and work is likely not complete yet, e.g. I want to see if patching can be reduced by passing variables via Mk/ or something else, see how to properly pass utils not in sys.mk like addr2line, and I also didn't fix all the fallout locally yet. Before upstreaming I would like to avoid rush, e.g. have proper reproducer, try to provide detailed logs with diffs, start from the root of ports tree, etc. Also, I don't spend much time on tinkering now, so I think I will start sending related /usr/ports patches by December.